rpcs3/rpcs3/Emu/Io/GHLtar.cpp
2023-05-25 20:37:15 +02:00

235 lines
6.8 KiB
C++

// Guitar Hero Live controller emulator
#include "stdafx.h"
#include "GHLtar.h"
#include "Emu/Cell/lv2/sys_usbd.h"
#include "Emu/Io/ghltar_config.h"
#include "Input/pad_thread.h"
LOG_CHANNEL(ghltar_log, "GHLTAR");
template <>
void fmt_class_string<ghltar_btn>::format(std::string& out, u64 arg)
{
format_enum(out, arg, [](ghltar_btn value)
{
switch (value)
{
case ghltar_btn::w1: return "W1";
case ghltar_btn::w2: return "W2";
case ghltar_btn::w3: return "W3";
case ghltar_btn::b1: return "B1";
case ghltar_btn::b2: return "B2";
case ghltar_btn::b3: return "B3";
case ghltar_btn::start: return "Start";
case ghltar_btn::hero_power: return "Hero Power";
case ghltar_btn::ghtv: return "GHTV";
case ghltar_btn::strum_down: return "Strum Down";
case ghltar_btn::strum_up: return "Strum Up";
case ghltar_btn::dpad_left: return "D-Pad Left";
case ghltar_btn::dpad_right: return "D-Pad Right";
case ghltar_btn::whammy: return "Whammy";
case ghltar_btn::tilt: return "Tilt";
case ghltar_btn::count: return "Count";
}
return unknown;
});
}
usb_device_ghltar::usb_device_ghltar(u32 controller_index, const std::array<u8, 7>& location)
: usb_device_emulated(location), m_controller_index(controller_index)
{
device = UsbDescriptorNode(USB_DESCRIPTOR_DEVICE, UsbDeviceDescriptor{0x0200, 0x00, 0x00, 0x00, 0x20, 0x12BA, 0x074B, 0x0100, 0x01, 0x02, 0x00, 0x01});
auto& config0 = device.add_node(UsbDescriptorNode(USB_DESCRIPTOR_CONFIG, UsbDeviceConfiguration{0x0029, 0x01, 0x01, 0x00, 0x80, 0x96}));
config0.add_node(UsbDescriptorNode(USB_DESCRIPTOR_INTERFACE, UsbDeviceInterface{0x00, 0x00, 0x02, 0x03, 0x00, 0x00, 0x00}));
config0.add_node(UsbDescriptorNode(USB_DESCRIPTOR_HID, UsbDeviceHID{0x0111, 0x00, 0x01, 0x22, 0x001d}));
config0.add_node(UsbDescriptorNode(USB_DESCRIPTOR_ENDPOINT, UsbDeviceEndpoint{0x81, 0x03, 0x0020, 0x01}));
config0.add_node(UsbDescriptorNode(USB_DESCRIPTOR_ENDPOINT, UsbDeviceEndpoint{0x01, 0x03, 0x0020, 0x01}));
}
usb_device_ghltar::~usb_device_ghltar()
{
}
void usb_device_ghltar::control_transfer(u8 bmRequestType, u8 bRequest, u16 wValue, u16 wIndex, u16 wLength, u32 buf_size, u8* buf, UsbTransfer* transfer)
{
transfer->fake = true;
// Control transfers are nearly instant
switch (bmRequestType)
{
case 0x21:
switch (bRequest)
{
case 0x09:
// Do nothing here - not sure what it should do.
break;
default:
ghltar_log.error("Unhandled Query: buf_size=0x%02X, Type=0x%02X, bRequest=0x%02X, bmRequestType=0x%02X", buf_size, (buf_size > 0) ? buf[0] : -1, bRequest, bmRequestType);
break;
}
break;
default:
usb_device_emulated::control_transfer(bmRequestType, bRequest, wValue, wIndex, wLength, buf_size, buf, transfer);
break;
}
}
extern bool is_input_allowed();
void usb_device_ghltar::interrupt_transfer(u32 buf_size, u8* buf, u32 /*endpoint*/, UsbTransfer* transfer)
{
ensure(buf_size >= 27);
transfer->fake = true;
transfer->expected_count = buf_size;
transfer->expected_result = HC_CC_NOERR;
// Interrupt transfers are slow(6ms, TODO accurate measurement)
// But make the emulated guitar reply in 1ms for better input behavior
transfer->expected_time = get_timestamp() + 1'000;
memset(buf, 0, buf_size);
buf[0] = 0x00; // Frets
// FRET HEXMASK:
// 0x02 = B1
// 0x04 = B2
// 0x08 = B3
// 0x01 = W1
// 0x10 = W2
// 0x20 = W3
buf[1] = 0x00; // Buttons
// BUTTONS HEXMASK:
// 0x01 = Select/Hero Power
// 0x02 = Start/Pause
// 0x04 = GHTV Button
// 0x10 = Sync Button
buf[2] = 0x0F; // D-Pad
// DPAD VALUES:
// 0x00 = Up
// 0x01 = Up-Left
// 0x02 = Left
// 0x03 = Left-Down
// 0x04 = Down
// 0x05 = Down-Right
// 0x06 = Right
// 0x07 = Up-Right
// 0x0F = None
buf[4] = 0x80; // Strummer
buf[5] = 0x80; // Hero Power (when buf[19] == 0x00 or 0xFF, set to that.)
buf[6] = 0x80; // Whammy
buf[19] = 0x80; // Accelerometer
buf[3] = 0x80; // Unknown, always 0x80
buf[22] = 0x01; // Unknown, always 0x01
buf[24] = 0x02; // Unknown, always 0x02
buf[26] = 0x02; // Unknown, always 0x02
// buf[7] through buf[18] are always 0x00
// buf[21]/[23]/[25] are also always 0x00
if (!is_input_allowed())
{
return;
}
std::lock_guard lock(pad::g_pad_mutex);
const auto handler = pad::get_current_handler();
const auto& pad = ::at32(handler->GetPads(), m_controller_index);
const auto& cfg = ::at32(g_cfg_ghltar.players, m_controller_index);
if (!(pad->m_port_status & CELL_PAD_STATUS_CONNECTED))
{
return;
}
std::function<void(u32 offset, u32 keycode, u16 value, bool check_axis)> handle_input;
handle_input = [&](u32 offset, u32 keycode, u16 value, bool check_axis)
{
if (const auto btn = cfg->find_button(offset, keycode); btn.has_value() && btn.value())
{
switch (btn.value()->btn_id())
{
case ghltar_btn::w1:
buf[0] += 0x01; // W1
break;
case ghltar_btn::b1:
buf[0] += 0x02; // B1
break;
case ghltar_btn::b2:
buf[0] += 0x04; // B2
break;
case ghltar_btn::b3:
buf[0] += 0x08; // B3
break;
case ghltar_btn::w3:
buf[0] += 0x20; // W3
break;
case ghltar_btn::w2:
buf[0] += 0x10; // W2
break;
case ghltar_btn::strum_down:
buf[4] = 0xFF; // Strum Down
break;
case ghltar_btn::strum_up:
buf[4] = 0x00; // Strum Up
break;
case ghltar_btn::dpad_left:
buf[2] = 0x02; // Left D-Pad (Unused)
break;
case ghltar_btn::dpad_right:
buf[2] = 0x06; // Right D-Pad (Unused)
break;
case ghltar_btn::start:
buf[1] += 0x02; // Pause
break;
case ghltar_btn::hero_power:
buf[1] += 0x01; // Hero Power
break;
case ghltar_btn::ghtv:
buf[1] += 0x04; // GHTV Button
break;
case ghltar_btn::whammy:
buf[6] = ~(value) + 0x01; // Whammy
break;
case ghltar_btn::tilt:
buf[19] = static_cast<u8>(value); // Tilt
if (buf[19] >= 0xF0)
buf[5] = 0xFF;
else if (buf[19] <= 0x10)
buf[5] = 0x00;
break;
case ghltar_btn::count:
break;
}
}
else if (check_axis)
{
switch (offset)
{
case CELL_PAD_BTN_OFFSET_ANALOG_LEFT_X: handle_input(offset, static_cast<u32>(axis_direction::both), value, false); break;
case CELL_PAD_BTN_OFFSET_ANALOG_LEFT_Y: handle_input(offset, static_cast<u32>(axis_direction::both), value, false); break;
case CELL_PAD_BTN_OFFSET_ANALOG_RIGHT_X: handle_input(offset, static_cast<u32>(axis_direction::both), value, false); break;
case CELL_PAD_BTN_OFFSET_ANALOG_RIGHT_Y: handle_input(offset, static_cast<u32>(axis_direction::both), value, false); break;
default: break;
}
}
};
for (const Button& button : pad->m_buttons)
{
if (button.m_pressed)
{
handle_input(button.m_offset, button.m_outKeyCode, button.m_value, true);
}
}
for (const AnalogStick& stick : pad->m_sticks)
{
handle_input(stick.m_offset, get_axis_keycode(stick.m_offset, stick.m_value), stick.m_value, true);
}
}